GutterRendererText.measureMarkup
void measureMarkup(string markup, out int width, out int height)Measures the pango markup provided using the pango layout used by the #GtkSourceGutterRendererText.
Parameters
markup | the pango markup to measure. |
width | location to store the width of the text in pixels, or null. |
height | location to store the height of the text in pixels, or null. |